Marysville weather by month
Average highs run from 47°F in January to 77°F in July, and January nights average 29°F. It gets 49 inches of rain and melted snow a year and 4 inches of snow. Nights drop below freezing about 94 times a year. The most comfortable months are June to September.
Best time to visit Marysville
For comfortable weather, go in June to September. In those months the average high stays between 62°F and 86°F, nights average 42°F or warmer, and rain stays under 4.5 inches for the month.
Month by month
| Month | High | Low | Precip. | Snow | Wet days | Days 90°F+ | Nights below 32°F | Feels |
|---|---|---|---|---|---|---|---|---|
| January | 47°F | 29°F | 5.9 in | 0.8 in | 14 | 0 | 18 | cold |
| February | 51°F | 28°F | 4.4 in | 0.7 in | 12 | 0 | 18 | cool |
| March | 54°F | 32°F | 5.0 in | 0.4 in | 13 | 0 | 15 | cool |
| April | 60°F | 35°F | 4.3 in | 0.0 in | 11 | 0 | 5 | cool |
| May | 67°F | 41°F | 3.4 in | 0.0 in | 8 | 0 | 0 | mild days, chilly nights |
| June | 71°F | 45°F | 2.7 in | 0.0 in | 7 | 1 | 0 | mild |
| July | 77°F | 48°F | 1.2 in | 0.0 in | 3 | 2 | 0 | warm |
| August | 78°F | 47°F | 1.3 in | 0.0 in | 3 | 2 | 0 | warm |
| September | 72°F | 42°F | 2.5 in | 0.0 in | 6 | 0 | 0 | mild |
| October | 61°F | 37°F | 4.9 in | 0.0 in | 11 | 0 | 5 | cool |
| November | 52°F | 31°F | 7.2 in | 0.2 in | 15 | 0 | 13 | cool |
| December | 46°F | 28°F | 6.2 in | 2.2 in | 14 | 0 | 19 | cold |
| Year | 61°F avg | 37°F avg | 49.0 in | 4.3 in | 119 | 5 | 94 |
"Wet days" are days with at least 0.1 inch of precipitation. "Feels" is a plain-language label for the average high. Normals for 1991-2020 from NOAA NCEI, station Arlington, WA (USC00450257), 7.3 miles from the city center. Averages describe typical conditions, not a forecast.
Sunrise, sunset and daylight in Marysville
The shortest day is December 21, with 8h 21m of daylight; the longest is June 21, with 16h 03m. The earliest sunset comes around December 7 (4:14 pm) and the latest around June 21 (9:12 pm). The sun sets after 8 pm on 133 days a year.
| On the 15th of | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:54 am | 4:42 pm | 8h 49m |
| February | 7:15 am | 5:31 pm | 10h 16m |
| March | 7:21 am | 7:14 pm | 11h 53m |
| April | 6:18 am | 7:59 pm | 13h 40m |
| May | 5:29 am | 8:41 pm | 15h 12m |
| June | 5:08 am | 9:10 pm | 16h 02m |
| July | 5:24 am | 9:03 pm | 15h 39m |
| August | 6:03 am | 8:21 pm | 14h 18m |
| September | 6:46 am | 7:20 pm | 12h 34m |
| October | 7:28 am | 6:19 pm | 10h 51m |
| November | 7:15 am | 4:30 pm | 9h 14m |
| December | 7:52 am | 4:15 pm | 8h 22m |
Calculated for 2026 at the center of Marysville with NOAA's solar equations, in local clock time (Pacific Time, including daylight saving time where it applies). Times shift by a minute or two from year to year.
Is Marysville getting warmer?
The last 10 years averaged 1.6°F warmer than the 20th century. See the climate stripes for Marysville.Frequently asked questions
What is the warmest month in Marysville?
August is the warmest month, with an average high of 78°F and an average low of 47°F (NOAA 1991-2020 normals).
What is the coldest month in Marysville?
December is the coldest, with average lows of 28°F and highs of 46°F.
What is the rainiest month in Marysville?
November gets the most precipitation, 7.2 inches on average. July is the driest at 1.2 inches.
Does it snow in Marysville?
Yes. Marysville averages 4 inches of snow a year.
When is the best time to visit Marysville?
For comfortable weather, June to September. Those months average highs between 62 and 86°F with lows of 42°F or more and modest rain.
Thinking of moving to Marysville?
See what homes, rent and everyday prices cost, who lives there and how it compares with nearby cities on the full Marysville profile.
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